fixed persistence by running build runner again...

lib/entities/PizzaRecipe/RecipeSubStep.g.dart

@@ -19,17 +19,19 @@ class RecipeSubStepAdapter extends TypeAdapter<RecipeSubStep> {
     return RecipeSubStep(
       fields[0] as String,
       fields[1] as String,
-    );
+    )..completedOn = fields[2] as DateTime?;
   }
 
   @override
   void write(BinaryWriter writer, RecipeSubStep obj) {
     writer
-      ..writeByte(2)
+      ..writeByte(3)
       ..writeByte(0)
       ..write(obj.name)
       ..writeByte(1)
-      ..write(obj.description);
+      ..write(obj.description)
+      ..writeByte(2)
+      ..write(obj.completedOn);
   }
 
   @override

lib/main.dart

@@ -16,16 +16,17 @@ import 'package:pizzaplanner/util.dart';
 void main() async {
   await Hive.initFlutter();
 
+  Hive.registerAdapter(PizzaEventAdapter());
   Hive.registerAdapter(PizzaRecipeAdapter());
   Hive.registerAdapter(RecipeStepAdapter());
   Hive.registerAdapter(RecipeSubStepAdapter());
   Hive.registerAdapter(IngredientAdapter());
-  Hive.registerAdapter(PizzaEventAdapter());
 
   await Hive.openBox<PizzaEvent>("PizzaEvents");
   var pizzaRecipesBox = await Hive.openBox<PizzaRecipe>("PizzaRecipes");
 
   if (pizzaRecipesBox.isEmpty){
+    print("Load pizzas from yamls");
     pizzaRecipesBox.addAll(await getRecipes());
   }
 

lib/pages/PizzaEventPage.dart

@@ -53,7 +53,6 @@ class PizzaEventPageState extends State<PizzaEventPage> {
                           } else {
                             subStep.completedOn = null;
                           }
-                          await this.widget.pizzaEvent.delete();
                           await this.widget.pizzaEvent.save();
                           setState(() {});
                         },